Urine, hair and nail samples were collected from a population of both sex aged from 40 to 87 years in Niška Banja (227 km south of Belgrade, Serbia) with a high level of natural radioactivity (HLNRA). To assess and monitor the public exposure, urine samples for each subject (24 h period) were collected and concentration of uranium (U) was analysed using alpha-particle spectrometry. Human hair and nails considered as bio-indicators of the public exposure to radionuclides over a long period of months or even years and concentration of U was determined using inductively coupled plasma-mass spectrometry. The mean concentrations of U in urine, hair and nail were 123 ng/L, 17 ng/g and 8 ng/g, respectively. There was a large variation and may be due to geological origin.

中文翻译：

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塞尔维亚高自然本底辐射区NISKA BANJA镇的尿，头发和指甲中的铀含量测量。

从NiškaBanja（塞尔维亚贝尔格莱德以南227公里）的40至87岁的两性人口中收集尿液，头发和指甲样品，这些样品的自然放射性水平很高（HLNRA）。为了评估和监测公众暴露情况，收集了每个受试者（24小时）的尿液样本，并使用α粒子光谱仪分析了铀（U）的浓度。人的头发和指甲被认为是公众在几个月甚至几年内长期暴露于放射性核素的生物指标，使用电感耦合等离子体质谱法测定了铀的浓度。尿液，头发和指甲中的U的平均浓度分别为123 ng / L，17 ng / g和8 ng / g。变化很大，可能是由于地质原因。